//
//  NSString+RegexCategory.m
//  lc-collect
//
//  Created by mac on 2021/3/3.
//

#import "NSString+RegexCategory.h"

@implementation NSString (RegexCategory)

#pragma mark - 正则相关
- (BOOL)isValidateByRegex:(NSString *)regex{
    
    NSPredicate *pre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
    
    return [pre evaluateWithObject:self];
}

#pragma mark -

/// 有效的字母数字密码
- (BOOL)isValidAlphaNumberPassword {
    
    NSString *regex = @"^(?!\\d+$|[a-zA-Z]+$)\\w{6,12}$";
    
    return [self isValidateByRegex:regex];
}

/// 限制只能输入数字
- (BOOL)isOnlyNumber {
    
    BOOL res = YES;
    NSCharacterSet *tmpSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789"];
    int i = 0;
    while (i < self.length) {
        NSString * string = [self substringWithRange:NSMakeRange(i, 1)];
        NSRange range = [string rangeOfCharacterFromSet:tmpSet];
        if (range.length == 0) {
            res = NO;
            break;
        }
        i++;
    }
    
    return res;
}

/// 手机号码的有效性:分电信、联通、移动和小灵通
- (BOOL)isMobileNumberClassification {
    /**
     * 手机号码
     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188,1705
     * 联通：130,131,132,152,155,156,185,186,1709
     * 电信：133,1349,153,180,189,1700
     */
    //    NSString * MOBILE = @"^1((3//d|5[0-35-9]|8[025-9])//d|70[059])\\d{7}$";//总况
    
    /**
     10         * 中国移动：China Mobile
     11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188，1705
     12         */
    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d|705)\\d{7}$";
    /**
     15         * 中国联通：China Unicom
     16         * 130,131,132,152,155,156,185,186,1709
     17         */
    NSString * CU = @"^1((3[0-2]|5[256]|8[56])\\d|709)\\d{7}$";
    /**
     20         * 中国电信：China Telecom
     21         * 133,1349,153,180,189,1700
     22         */
    NSString * CT = @"^1((33|53|8[09])\\d|349|700)\\d{7}$";
    /**
     25         * 大陆地区固话及小灵通
     26         * 区号：010,020,021,022,023,024,025,027,028,029
     27         * 号码：七位或八位
     28         */
    NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";
    
    //    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
    
    if (([self isValidateByRegex:CM]) || ([self isValidateByRegex:CU]) || ([self isValidateByRegex:CT]) || ([self isValidateByRegex:PHS])) {
        
        return YES;
    } else {
        
        return NO;
    }
}

/// 手机号有效性
- (BOOL)isMobileNumber {
    
    /**
     *  手机号以13、15、18、170开头，8个 \d 数字字符
     *  小灵通 区号：010,020,021,022,023,024,025,027,028,029 还有未设置的新区号xxx
     */
    NSString *mobileNoRegex = @"^1((3\\d|5[0-35-9]|8[025-9])\\d|70[059])\\d{7}$"; // 除4以外的所有个位整数，不能使用[^4,\\d]匹配，这里是否iOS Bug?
    NSString *phsRegex =@"^0(10|2[0-57-9]|\\d{3})\\d{7,8}$";
    
    BOOL ret = [self isValidateByRegex:mobileNoRegex];
    BOOL ret1 = [self isValidateByRegex:phsRegex];
    
    return (ret || ret1);
}

/// 有效的验证码(根据自家的验证码位数进行修改)
- (BOOL)isValidVerifyCode {
    
    NSString *pattern = @"^[0-9]{4}";
    
    return [self isValidateByRegex:pattern];
}


/// 邮箱的有效性
- (BOOL)isEmailAddress {
    
    NSString *emailRegex = @"[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    
    return [self isValidateByRegex:emailRegex];
}

/// 简单的身份证有效性
- (BOOL)simpleVerifyIdentityCardNum {
    
    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";
    
    return [self isValidateByRegex:regex2];
}

/// 车牌号的有效性
- (BOOL)isCarNumber {
    
    //车牌号:湘K-DE829 香港车牌号码:粤Z-J499港
    NSString *carRegex = @"^[\u4e00-\u9fff]{1}[a-zA-Z]{1}[-][a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fff]$"; // 其中\u4e00-\u9fa5表示unicode编码中汉字已编码部分，\u9fa5-\u9fff是保留部分，将来可能会添加
    
    return [self isValidateByRegex:carRegex];
}

/// Mac地址有效性
- (BOOL)isMacAddress {
    
    NSString * macAddRegex = @"([A-Fa-f\\d]{2}:){5}[A-Fa-f\\d]{2}";
    
    return  [self isValidateByRegex:macAddRegex];
}

/// 网址有效性
- (BOOL)isValidUrl {
    
    NSString *regex = @"^((http)|(https))+:[^\\s]+\\.[^\\s]*$";
    
    return [self isValidateByRegex:regex];
}

/// 纯汉字
- (BOOL)isValidChinese {
    
    NSString *chineseRegex = @"^[\u4e00-\u9fa5]+$";
    
    return [self isValidateByRegex:chineseRegex];
}

/// 邮政编码
- (BOOL)isValidPostalcode {
    
    NSString *postalRegex = @"^[0-8]\\d{5}(?!\\d)$";
    
    return [self isValidateByRegex:postalRegex];
}

/// 工商税号
- (BOOL)isValidTaxNo {
    
    NSString *taxNoRegex = @"[0-9]\\d{13}([0-9]|X)$";
    
    return [self isValidateByRegex:taxNoRegex];
}

/// 是否符合最小长度、最长长度，是否包含中文,首字母是否可以为数字
/// @param minLenth 账号最小长度
/// @param maxLenth 账号最长长度
/// @param containChinese 是否包含中文
/// @param firstCannotBeDigtal 首字母不能为数字
- (BOOL)isValidWithMinLenth:(NSInteger)minLenth
                   maxLenth:(NSInteger)maxLenth
             containChinese:(BOOL)containChinese
        firstCannotBeDigtal:(BOOL)firstCannotBeDigtal {
    
    //  [\u4e00-\u9fa5A-Za-z0-9_]{4,20}
    NSString *hanzi = containChinese ? @"\u4e00-\u9fa5" : @"";
    NSString *first = firstCannotBeDigtal ? @"^[a-zA-Z_]" : @"";
    
    NSString *regex = [NSString stringWithFormat:@"%@[%@A-Za-z0-9_]{%d,%d}", first, hanzi, (int)(minLenth-1), (int)(maxLenth-1)];
    
    return [self isValidateByRegex:regex];
}

/// 是否符合最小长度、最长长度，是否包含中文,数字，字母，其他字符，首字母是否可以为数字
/// @param minLenth 账号最小长度
/// @param maxLenth 账号最长长度
/// @param containChinese 是否包含中文
/// @param containDigtal 包含数字
/// @param containLetter 包含字母
/// @param containOtherCharacter 其他字符
/// @param firstCannotBeDigtal 首字母不能为数字
- (BOOL)isValidWithMinLenth:(NSInteger)minLenth
                   maxLenth:(NSInteger)maxLenth
             containChinese:(BOOL)containChinese
              containDigtal:(BOOL)containDigtal
              containLetter:(BOOL)containLetter
      containOtherCharacter:(NSString *)containOtherCharacter
        firstCannotBeDigtal:(BOOL)firstCannotBeDigtal {
    
    NSString *hanzi = containChinese ? @"\u4e00-\u9fa5" : @"";
    NSString *first = firstCannotBeDigtal ? @"^[a-zA-Z_]" : @"";
    NSString *lengthRegex = [NSString stringWithFormat:@"(?=^.{%@,%@}$)", @(minLenth), @(maxLenth)];
    NSString *digtalRegex = containDigtal ? @"(?=(.*\\d.*){1})" : @"";
    NSString *letterRegex = containLetter ? @"(?=(.*[a-zA-Z].*){1})" : @"";
    NSString *characterRegex = [NSString stringWithFormat:@"(?:%@[%@A-Za-z0-9%@]+)", first, hanzi, containOtherCharacter ? containOtherCharacter : @""];
    NSString *regex = [NSString stringWithFormat:@"%@%@%@%@", lengthRegex, digtalRegex, letterRegex, characterRegex];
    
    return [self isValidateByRegex:regex];
}

#pragma mark - 算法相关
/// 精确的身份证号码有效性检测
/// @param value 身份证
+ (BOOL)accurateVerifyIDCardNumber:(NSString *)value {
    
    value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    
    int length =0;
    if (!value) {
        return NO;
    } else {
        length = (int)value.length;
        
        if (length !=15 && length !=18) {
            return NO;
        }
    }
    
    // 省份代码
    NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41", @"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];
    
    NSString *valueStart2 = [value substringToIndex:2];
    BOOL areaFlag = NO;
    for (NSString *areaCode in areasArray) {
        if ([areaCode isEqualToString:valueStart2]) {
            areaFlag = YES;
            break;
        }
    }
    
    if (!areaFlag) {
        return false;
    }
    
    
    NSRegularExpression *regularExpression;
    NSUInteger numberofMatch;
    
    int year = 0;
    switch (length) {
        case 15:
            year = [value substringWithRange:NSMakeRange(6,2)].intValue + 1900;
            
            if (year % 4 == 0 || (year % 100 == 0 && year % 4 == 0)) {
                
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
            } else {
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value options:NSMatchingReportProgress range:NSMakeRange(0, value.length)];
            
            if(numberofMatch > 0) {
                return YES;
            } else {
                return NO;
            }
        case 18:
            year = [value substringWithRange:NSMakeRange(6, 4)].intValue;
            if (year % 4 == 0 || (year % 100 == 0 && year % 4 == 0)) {
                
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
            }else {
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$" options:NSRegularExpressionCaseInsensitive error:nil];//测试出生日期的合法性
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];
            
            if(numberofMatch > 0) {
                int S = ([value substringWithRange:NSMakeRange(0, 1)].intValue + [value substringWithRange:NSMakeRange(10, 1)].intValue) * 7 + ([value substringWithRange:NSMakeRange(1, 1)].intValue + [value substringWithRange:NSMakeRange(11, 1)].intValue) * 9 + ([value substringWithRange:NSMakeRange(2, 1)].intValue + [value substringWithRange:NSMakeRange(12, 1)].intValue) * 10 + ([value substringWithRange:NSMakeRange(3, 1)].intValue + [value substringWithRange:NSMakeRange(13, 1)].intValue) * 5 + ([value substringWithRange:NSMakeRange(4, 1)].intValue + [value substringWithRange:NSMakeRange(14, 1)].intValue) * 8 + ([value substringWithRange:NSMakeRange(5, 1)].intValue + [value substringWithRange:NSMakeRange(15, 1)].intValue) * 4 + ([value substringWithRange:NSMakeRange(6, 1)].intValue + [value substringWithRange:NSMakeRange(16, 1)].intValue) * 2 + [value substringWithRange:NSMakeRange(7, 1)].intValue * 1 + [value substringWithRange:NSMakeRange(8, 1)].intValue * 6 + [value substringWithRange:NSMakeRange(9, 1)].intValue * 3;
                int Y = S % 11;
                NSString *M = @"F";
                NSString *JYM = @"10X98765432";
                M = [JYM substringWithRange:NSMakeRange(Y, 1)];// 判断校验位
                if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
                    return YES; // 检测ID的校验位
                } else {
                    return NO;
                }
            } else {
                return NO;
            }
        default:
            return NO;
    }
}

/** 银行卡号有效性问题Luhn算法
 *  现行 16 位银联卡现行卡号开头 6 位是 622126～622925 之间的，7 到 15 位是银行自定义的，
 *  可能是发卡分行，发卡网点，发卡序号，第 16 位是校验码。
 *  16 位卡号校验位采用 Luhm 校验方法计算：
 *  1，将未带校验位的 15 位卡号从右依次编号 1 到 15，位于奇数位号上的数字乘以 2
 *  2，将奇位乘积的个十位全部相加，再加上所有偶数位上的数字
 *  3，将加法和加上校验位能被 10 整除。
 */
/// 银行卡的有效性
- (BOOL)bankCardluhmCheck {
    
    NSString *lastNum = [[self substringFromIndex:(self.length - 1)] copy];//取出最后一位
    NSString *forwardNum = [[self substringToIndex:(self.length - 1)] copy];//前15或18位
    
    NSMutableArray *forwardArr = [[NSMutableArray alloc] initWithCapacity:0];
    for (int i = 0; i < forwardNum.length; i++) {
        NSString *subStr = [forwardNum substringWithRange:NSMakeRange(i, 1)];
        [forwardArr addObject:subStr];
    }
    
    NSMutableArray *forwardDescArr = [[NSMutableArray alloc] initWithCapacity:0];
    for (int i = (int)(forwardArr.count - 1); i > -1; i--) {//前15位或者前18位倒序存进数组
        [forwardDescArr addObject:forwardArr[i]];
    }
    
    NSMutableArray *arrOddNum = [[NSMutableArray alloc] initWithCapacity:0]; //奇数位*2的积 < 9
    NSMutableArray *arrOddNum2 = [[NSMutableArray alloc] initWithCapacity:0]; //奇数位*2的积 > 9
    NSMutableArray *arrEvenNum = [[NSMutableArray alloc] initWithCapacity:0]; //偶数位数组
    
    for (int i = 0; i < forwardDescArr.count; i++) {
        NSInteger num = [forwardDescArr[i] intValue];
        if (i % 2) {//偶数位
            [arrEvenNum addObject:[NSNumber numberWithInteger:num]];
        } else {//奇数位
            if (num * 2 < 9) {
                [arrOddNum addObject:[NSNumber numberWithInteger:num * 2]];
            } else {
                NSInteger decadeNum = (num * 2) / 10;
                NSInteger unitNum = (num * 2) % 10;
                [arrOddNum2 addObject:[NSNumber numberWithInteger:unitNum]];
                [arrOddNum2 addObject:[NSNumber numberWithInteger:decadeNum]];
            }
        }
    }
    
    __block  NSInteger sumOddNumTotal = 0;
    [arrOddNum enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
        sumOddNumTotal += [obj integerValue];
    }];
    
    __block NSInteger sumOddNum2Total = 0;
    [arrOddNum2 enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
        sumOddNum2Total += [obj integerValue];
    }];
    
    __block NSInteger sumEvenNumTotal =0 ;
    [arrEvenNum enumerateObjectsUsingBlock:^(NSNumber * obj, NSUInteger idx, BOOL *stop) {
        sumEvenNumTotal += [obj integerValue];
    }];
    
    NSInteger lastNumber = [lastNum integerValue];
    
    NSInteger luhmTotal = lastNumber + sumEvenNumTotal + sumOddNum2Total + sumOddNumTotal;
    
    return (luhmTotal % 10 == 0) ? YES : NO;
}

/// IP地址有效性
- (BOOL)isIPAddress {
    
    NSString *regex = [NSString stringWithFormat:@"^(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})$"];
    NSPredicate *pre = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
    BOOL rc = [pre evaluateWithObject:self];
    
    if (rc) {
        NSArray *componds = [self componentsSeparatedByString:@","];
        
        BOOL v = YES;
        for (NSString *s in componds) {
            if (s.integerValue > 255) {
                v = NO;
                break;
            }
        }
        
        return v;
    }
    
    return NO;
}

/// 从String中寻找url段
- (NSArray *)stringMatchUrls {
    
    if (self) {
        
        NSError *error;
        NSString *regulaStr = @"((http[s]{0,1}|ftp)://[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(www.[a-zA-Z0-9\\.\\-]+\\.([a-zA-Z]{2,4})(:\\d+)?(/[a-zA-Z0-9\\.\\-~!@#$%^&*+?:_/=<>]*)?)|(\\w\\.(com|cn|net))";
        NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:regulaStr options:NSRegularExpressionCaseInsensitive error:&error];
        NSArray *arrayOfAllMatches = [regex matchesInString:self options:0 range:NSMakeRange(0, [self length])];
        
        if (arrayOfAllMatches.count != 0) {
            return arrayOfAllMatches;
        }
    }
    
    return nil;
}

@end
